MLA
Ferguson Bros. Agency, Inc. (Indianapolis, Ind.). Three pictures of Big Maybelle in a dress with a scarf in her hand singing with a microphone. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/846d2547k1-cor.
APA, 6th edition
Ferguson Bros. Agency, Inc. (Indianapolis, Ind.). (unknown)[Three pictures of Big Maybelle in a dress with a scarf in her hand singing with a microphone]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/846d2547k1-cor.
Chicago
Ferguson Bros. Agency, Inc. (Indianapolis, Ind.), Three pictures of Big Maybelle in a dress with a scarf in her hand singing with a microphone, unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/846d2547k1-cor.